Orin NX battery operated and VDD_IN efficiency over input range

Robotics & Edge Computing Jetson Systems Jetson Orin NX
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I’m busy with a system design with the Orin NX and I’ve 2 questions about the VDD_IN.

  1. Can you connect a battery output directly to the VDD_IN pins by means of using a load switch, filtering and buffering in between the battery and Orin NX? The load switch, filtering and buffering will make sure the power rail is stable. Of course the voltage will slowly drop over time. The battery has a voltage of 10V8-16V8.

  2. Related to question 1, What is the efficiency of the Orin NX (PMIC) over the range of 5V-20V input? Can you share data of VDD_IN voltage vs efficiency like a graph for example?

3

Operating from a battery with 10V8 to 16V8 should be feasible with load switch, filtering and buffering/decoupling.
For your design purposes you could assume voltage regulator efficiencies in the range of 80% at low load to 90% at high load. Efficiency would be slightly better at lower operating voltages in that range.

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